GreenLighting Solar Powered LED Roof Gutter Light (Black, 4 Pack) LED - Energy efficient lighting is now "in" and for good reason. LED's take 75% less power to operate compared to traditional incandescent lights while lasting up to 25 times longer. 3 LED bulbs provide a bright white light to help illuminate your deck, patio, or front entrance. SOLAR ENERGY - Using the power of the sun is not only beneficial to the earth, but also to your pocket book. Solar energy is an unlimited, free resource available daily. Utilizing a mono-crystal solar panel, this utility light can quickly recharge it's batteries throughout the day for use at night while eliminating the need to regularly purchase new batteries. EASE OF USE - Getting things installed around the house and properly maintained is a time consuming task. Quickly install your new gutter light with the twist of a screw (included), turn on once, and walk away. The automated on/off feature controls the utility light based on surrounding light. INCLUDED - Tired of going to install something just to find out you don't have batteries? Green Lighting has thought ahead and included all the items necessary to get your new light up and running. Each gutter light includes 1.2V rechargeable Ni-Mh batteries, mounting bracket, and mounting screws so you won't be running to the store at the last minute. PRODUCT DIMENSIONS - Measures 5" x 5" x 2.75"